Rectangular pyramid, volume 44 8 in.² base edge 12 inch base length 8 inch

Solution:

The volume of rectangular pyramid is given as:

Where,

l is length and w is width and h is height

From given,

v = 448

l = 8

w = 12

Substituting the values we get,

Thus height of pyramid is 14 units

Solution:

The volume of rectangular pyramid is given as:

Where,

l is length and w is width and h is height

From given,

v = 448

l = 8

w = 12

Substituting the values we get,

Thus height of pyramid is 14 units

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

The solution is in the following image

F=ma

where F=force

m=mass

a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Approximately it is aqual to 1300kg

The answer is in the image 

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales